PHP · Theory

strcoll()

Theory

242/352

strcoll()

Ananya only reaches for strcoll() when a strcoll dry-run has to stay correct in a first job task.

Do strcoll() once by hand. one strcoll step Ananya can write from memory. Change one input. Say the new result out loud.

strcoll() exists so Ananya can keep a strcoll dry-run correct in a first job task.

Ananya ships strcoll() in a first job task. That is the use case worth saying.

Don’t do this with strcoll() — skipping the failure case for strcoll. Interviewers spot it in ten seconds.

After strcoll(), Ananya should still remember skipping the failure case for strcoll.

Close strcoll() with — “If I skip it, a strcoll dry-run goes wrong like this: skipping the failure case for strcoll.”

Exam tip

Board: a strcoll dry-run. Dry-run strcoll(). Name the trap: skipping the failure case for strcoll.

Example

<?php
// strcoll()
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

strcoll(): scores array, print avg, then high marks. Say the output.

Short notes

Defstrcoll() — Ananya uses it for a strcoll dry-run in a first job task.
Rulestrcoll() → one strcoll step Ananya can write from memory.
Rememberstrcoll() + Apache/Nginx (a first job task).
Usestrcoll() in a first job task (a strcoll dry-run).
Trapstrcoll() — skipping the failure case for strcoll.
Exstrcoll() → a strcoll dry-run.

PHP · Theory

strcoll()

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Theory

242/352

strcoll()

Ananya only reaches for strcoll() when a strcoll dry-run has to stay correct in a first job task.

Do strcoll() once by hand. one strcoll step Ananya can write from memory. Change one input. Say the new result out loud.

strcoll() exists so Ananya can keep a strcoll dry-run correct in a first job task.

Ananya ships strcoll() in a first job task. That is the use case worth saying.

Don’t do this with strcoll() — skipping the failure case for strcoll. Interviewers spot it in ten seconds.

After strcoll(), Ananya should still remember skipping the failure case for strcoll.

Close strcoll() with — “If I skip it, a strcoll dry-run goes wrong like this: skipping the failure case for strcoll.”

Exam tip

Board: a strcoll dry-run. Dry-run strcoll(). Name the trap: skipping the failure case for strcoll.

Example

<?php
// strcoll()
$scores = [80, 90, 70];
$avg = array_sum($scores) / count($scores);
echo "avg=" . number_format($avg, 1) . "\n";
foreach ($scores as $s) {
  if ($s >= 80) echo "high: $s\n";
}

strcoll(): scores array, print avg, then high marks. Say the output.

Short notes

Defstrcoll() — Ananya uses it for a strcoll dry-run in a first job task.
Rulestrcoll() → one strcoll step Ananya can write from memory.
Rememberstrcoll() + Apache/Nginx (a first job task).
Usestrcoll() in a first job task (a strcoll dry-run).
Trapstrcoll() — skipping the failure case for strcoll.
Exstrcoll() → a strcoll dry-run.

strcoll()

Example

Short notes

Questions

strcoll()

Example

Short notes

Questions